The biceps are bulging, the striations and the vascularity is in, and the taut, muscular lines are at their most graceful – it is genuinely impossible to look at female bodybuilder Ann Gannon and see a 60-year-old grandmother!

100% Muscled-up, 100% massive and 100% Marge Simpson – the inclusion of a storyline in which Marge becomes a competitive female bodybuilder shows just how much female muscle sport has entered the mainstream.